POC760 pages
Shipping: 2332 S 25th St (Zip 68105)
Mailing: P.O. Box #6069 (Zip 68106)
Omaha NE
Phone: (402) 344.4434
Fax: (402) 341.5419
www.BRAND-HYD.COM
(D
ISO 9001.2008 WITH DESIGN
Certificate #02.002 1
PILOT OPERATED CHECK VALVE
(or Counter Balance Valve)
"POC76-3/4"
POC76-3/4
CYLINDER
PORT
WA
PILOT
PORT
PUMP
PORT
POC76-3/4
FEATURES:
• PRECISION GROUND HEAT TREATED SPOOL that assures long life.
• FREE FLOW IN ONE DIRECTION and checked flow in the other (Not a zero leak check).
• BUILT IN DAMPENING CHAMBER provides smooth action when pilot pressure is applied.
• HOLES DRILLED CROSS-WISE allow the flow to gradually increase and decrease as it closes
SPECIFICATIONS:
• Pressure rating 3000 psi (207 bar).
• Rated for 0-30 gpm (0-114 lpm)
• Weighs 5 lbs (2.3 kg).
• 30 Micron filtration recommended
MATERIALS:
• Cast Iron Body
• Buna N O'Rings
• Heat Treated Steel Spool
• Delrin Check Poppet
POC76-3/4 - GENERAL INFORMATION:
The Brand, pilot check valve will permit free flow in one direction and will check flow in the opposite
direction. Applying pilot pressure to the pilot port of this valve moves the main spool, causing it to shift
and unblock the flow. Pilot pressure must be 50 psi (3.4 bar) or greater. The POC76-3/4 is normally
connected to the bottom of a cylinder holding a heavy load. This valve will prevent the load from free
falling if a hose or pipe breaks. The valve meters the flow at the same rate in both directions which
prevents cavitation and run-a-way. Metering the flow can be accomplished by varying the pilot pressure.
The POC76-3/4 is available in production quantities of 100 and greater, unless in stock.
DIMENSIONAL DATA (POC76-3/4 SHOWN): inches & [millimeters]
1.88" [47.6]-
— 4.56" [115.9]-
— 3.88" [98.4]--
3/4" NPT
CYLINDER PORT"
1.91" [48.4]
oo
10-13
3/4" NPT
PUMP PORT"
.94" [23.8]
3/8" NPT
PILOT PORT
2X0g [06.7]
1.88" [47.6]
Page G-3
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